auto save

diy.py

@@ -2,8 +2,9 @@
 #file1=open(r'C:\\Users\\Administrator\\Desktop\\test.txt','w',encoding='utf-8')
 #file1.write('小兰:12本','小丽：11本','李文：11本','张伟：11本')
 #file1.close()
+new_data=''
 with open(r'C:\\Users\\Administrator\\Desktop\\test.txt','w',encoding='utf-8')as file: 
  for data in file:
      if '小强：10' in data:
-         print('数据在')
-    
\ No newline at end of file
+         data=data.replace('小强：10本','小强：11')
+    new_data+=data
\ No newline at end of file